Calaveras Co Water District
675 Gold Oak Rd, San Andreas, CA 95249 · Calaveras County · Publicly Owned Treatment Works
- Average flow
- 0.27 MGD
- Design flow
- 0.32 MGD
- NPDES permit
- CA0079464
- Effective
- Permit expires
- May 2029
- Population served
- 2,333
- CWNS 2022
Calaveras Co Water District is a publicly owned wastewater treatment plant in San Andreas, Calaveras County, California treating an average of 0.27 million gallons per day against a permitted design capacity of 0.32 MGD, serving about 2,333 residents. It discharges under NPDES permit CA0079464 (effective), which expires in May 2029, with 1 recorded violation in the last three years.
Treatment technology
2 treatment structures and unit processes identified at Calaveras Co Water District.
Available with a free Klarifi account
See the full treatment train at Calaveras Co Water District: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 1
- Effluent violations
- 1
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
11 verified contacts for Calaveras Co Water District, with validated emails and direct phone numbers.
Unlock 11 verified contacts (8 more than shown)
Names, validated emails and direct phone numbers for decision-makers at Calaveras Co Water District, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in California
Ione · 13 mi away
0.01 MGD
Copperopolis · 21 mi away
0.46 MGD
El Dorado Hills · 36 mi away
1.97 MGD
Placerville · 38 mi away
—
Lodi · 39 mi away
—
Stockton · 39 mi away
28.94 MGD
Bear Valley · 40 mi away
0.85 MGD
Manteca · 42 mi away
6.91 MGD
Calaveras Co Water District: frequently asked questions
Sources and methodology
Flow, permit and violation figures come from the EPA's ICIS-NPDES discharge monitoring records. Population served comes from the Clean Watersheds Needs Survey 2022. Treatment structures are identified by Klarifi's review of aerial imagery, and capital improvement projects are extracted from published municipal budget documents. Violations are counted over the last three years of monitoring reports.
Data refreshed October 26, 2026; facility record last updated March 19, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Ozonation · Activated sludge · all terms